flex键盘

1.<?xml version="1.0" encoding="utf-8"?>
2.<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
3. layout="absolute"
4. applicationComplete="appComplete();">
5. <mx:Script>
6. <![CDATA[
7. import mx.controls.Alert;
8. import flash.events.KeyboardEvent;
9.
10. //监听keyboard事件
11. private function appComplete():void
12. {
13. this.addEventListener(KeyboardEvent.KEY_UP, myKeyUp);
14. this.addEventListener(KeyboardEvent.KEY_DOWN, myKeyDown);
15. }
16.
17. //响应keyup事件
18. private function myKeyUp(evt:KeyboardEvent):void
19. {
20. mx.controls.Alert.show('evt.keyCode=' + evt.keyCode.toString()+"\n"+ "弹起\n", "KeyUp");
21. }
22.
23. //响应keydown事件
24. private function myKeyDown(evt:KeyboardEvent):void
25. {
26. t1.text=t1.text + 'evt.charCode=' + evt.charCode + ' evt.keyCode=' + evt.keyCode + ' evt.keyLocation=' + evt.keyLocation + " 按下\n";
27. }
28. ]]>
29. </mx:Script>
30. <mx:TextArea x="261"
31. y="226"
32. id="t1"
33. width="381"
34. height="200"/>
35. <mx:TextInput x="372"
36. y="114"
37. id="t2"/>
38.</mx:Application>